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A study, conducted over two winters, was carried out to characterize the ice formation in five cylindrical swine manure tanks in the Quebec region. During each visit, the ice thickness was measured everythree meters along the east-west and north-southdiameters of the tanks. The tanks were visited twice a month from early-December to mid-April. Once every month, ice samples were extracted, measured and photographed.Ice was present in all tanks visited and its thickness varied from 0.5 to 1.5 meters. Ice thickness was influenced by filling methods and tank diameters. Sixty percent of the ice thickness was composedof snow ice containing spots of urea. The top of the ice cap was located between 0.3 and 2 m from the top of the tank wall. Ice temperatures varied between -1 and-5?C.
S. Godbout, A. Marquis et D. Masse 1992. FORMATION DE PLACE DANS LES RESERVOIRS A LISIER. Canadian Agricultural Engineering 34(3):247-252.
Canadian Society for Bioengineering